'''
from tkinter import *

m1 = PanedWindow()
m1.pack(fill=BOTH,expand=1)

left = Label(m1,text='left pane')
m1.add(left)

m2 = PanedWindow(orient=VERTICAL)
m1.add(m2)

top = Label(m2,text='top pane')
m2.add(top)

bottom = Label(m2,text='bottom pane')
m2.add(bottom)


mainloop()
'''
from tkinter import *

m1 = PanedWindow(showhandle=True,sashrelief=SUNKEN)
m1.pack(fill=BOTH,expand=1)

left = Label(m1,text='left pane')
m1.add(left)

m2 = PanedWindow(orient=VERTICAL,showhandle=True,sashrelief=SUNKEN)
m1.add(m2)

top = Label(m2,text='top pane')
m2.add(top)

bottom = Label(m2,text='bottom pane')
m2.add(bottom)


mainloop()
